Publications by authors named "Kovac J"

Hydrogen peroxide (HO) is a ubiquitous signal regulating many biological processes, including innate immunity, in all eukaryotes. However, it remains largely unknown that how transcription factors directly sense HO in eukaryotes. Here, we report that rice basic/helix-loop-helix transcription factor bHLH25 directly senses HO to confer resistance to multiple diseases caused by fungi or bacteria.

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Prophages constitute a substantial portion of bacterial genomes, yet their effects on hosts remain poorly understood. We examine the abundance, distribution, and activity of prophages in Bacillus subtilis using computational and laboratory analyses. Genome sequences from the NCBI database and riverbank soil isolates reveal prophages primarily related to mobile genetic elements in laboratory strains.

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Pathogen bacteria appear and survive on various surfaces made of steel or glass. The existence of these bacteria in different forms causes significant problems in healthcare facilities and society. Therefore, the surface engineering of highly potent antimicrobial coatings is highly important in the 21st century, a period that began with a series of epidemics.

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S. enterica isolates (n = 78) obtained from the vegetable supply chain (farms, distribution centers, markets) in two Cambodian provinces (Siem Reap, Battambang) were sequenced and analyzed. In silico identification of serotypes and detection of antimicrobial resistance genes was performed using SISTR and ABRicate, respectively.

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Background: Arthrogryposis-renal dysfunction-cholestasis (ARC) syndrome, a rare autosomal recessive disorder, exhibits genetic heterogeneity with the VIPAS39 gene pathological variants being a distinct contributor.

Results: We present two related patients from Kosovo, describing the clinical, genetic, and therapeutic aspects of the syndrome. The identified novel VIPAS39 pathological variants (c.

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Cleaning and sanitizing are of vital importance to control Listeria monocytogenes in food processing facilities. Here, we evaluated the effect of four cleaning and sanitation standard operating procedures (SSOPs; T1, T2, T3, T4) on the reduction of total aerobic mesophilic microorganisms, the occurrence of L. monocytogenes, and the microbiota composition in three tree fruit packing facilities (F1, F2, and F3) over two packing seasons (Y1 and Y2).

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This study aimed to comprehensively examine the prevalence of L. monocytogenes and Listeria spp. in dairy products including raw milk, pasteurized milk, and cottage cheese, and identify potential risk factors for contamination throughout the dairy value chain in major milk sheds in Ethiopia.

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  • Many patients with atrial fibrillation (AF) are not receiving or are stopping oral anticoagulation therapy, despite its importance for stroke prevention.
  • While direct oral anticoagulants (DOACs) are available, issues like bleeding risks, poor compliance, and aversion to treatment contribute to this problem.
  • A recent expert consensus guide highlights left atrial appendage closure (LAAC) as a safe alternative for stroke prevention in patients who cannot use long-term anticoagulation, detailing the devices, implantation technique, and follow-up requirements for non-implanting physicians.
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  • - The study compares two decellularization methods (enzyme-detergent and detergent-detergent) to see how they affect the structure and mechanics of human urethral tissue, using samples from 18 individuals.
  • - Both methods successfully removed cellular content while maintaining essential extracellular matrix components like collagen and elastic fibers, indicating they preserved the tissue's structural integrity.
  • - Biomechanical tests showed that the detergent-detergent method resulted in lower stress levels compared to native tissues, and both methods had reduced elasticity, but none were toxic to stem cells, suggesting they are viable for tissue engineering and biobanking.
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We isolated Salmonella enterica serovar Senftenberg in raw wastewater from 2 Pennsylvania wastewater treatment facilities during June 2022. Whole genome sequencing revealed 4 isolates separated by <4 single nucleotide polymorphisms from S. enterica Senftenberg in a cluster from the 2022 nationwide outbreak linked to contaminated peanut butter.

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Background And Aims: In contrast to extensively studied hypercholesterolemia, knowledge of hypocholesterolemia is limited. This study aims to assess the prevalence, clinical characteristics, and genetics of children and adolescents with hypocholesterolemia.

Methods: This national prospective cross-sectional cohort study was part of Slovenia's universal opt-out cholesterol screening program.

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Childhood obesity is a significant global health challenge with rising prevalence over the past 50 years, affecting both immediate and long-term health outcomes. The increase in prevalence from 0.7% to 5.

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Radical esophagectomy remains the only potentially curative option in the treatment of esophageal cancer. However, this procedure is burdened with high morbidity and mortality rates, even in high-volume centers. A tracheo- or bronchoesophageal fistula (TBF) is rare but is one of the most difficult life-threatening complications following an esophagectomy for cancer treatment.

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The application of hydrogen flooding was recently shown to be a simple and effective approach for improved layer differentiation and interface determination during secondary ion mass spectrometry (SIMS) depth profiling of thin films, as well as an approach with potential in the field of quantitative SIMS analyses. To study the effects of hydrogen further, flooding of H molecules was compared to reactions with atomic H on samples of pure metals and their alloys. H was introduced into the analytical chamber via a capillary, which was heated to approximately 2200 K to achieve dissociation.

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  • - This study compares long-read and short-read sequencing methods to detect heteroplasmy in mitochondrial DNA using over 592,000 datasets generated from ultra-deep sequenced samples
  • - Results revealed that long-read sequencing had high accuracy and showed promise in detecting heteroplasmy at levels as low as 12%, but it may underreport higher-level variants
  • - The findings suggest that while nanopore sequencing could be beneficial for diagnosing mitochondrial diseases, careful validation is necessary to ensure the reliability of the diagnostic results
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Accurate knowledge of the microbiota collected from surfaces in food processing environments is important for food quality and safety. This study assessed discrepancies in taxonomic composition and alpha and beta diversity values generated from eight different bioinformatic workflows for the analysis of 16S rRNA gene sequences extracted from the microbiota collected from surfaces in dairy processing environments. We found that the microbiota collected from environmental surfaces varied widely in density (0-9.

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  • Over the past 50 years, more invasive cardiovascular procedures have been performed worldwide, increasing risks of acute brain injury during and after these interventions.
  • Current international guidelines often overlook the issue of acute brain injury from cardiovascular procedures, which can lead to worse medical outcomes and higher healthcare costs.
  • The international Consensus Statement aims to provide recommendations for prevention, diagnosis, and treatment of this acute brain injury while also highlighting areas where more research is needed.
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Non-typhoidal is a common cause of gastroenteritis worldwide, but current non-typhoidal surveillance is suboptimal. Here, we evaluated the utility of wastewater monitoring to enhance traditional surveillance for this foodborne pathogen. In June 2022, we tested raw sewage collected twice a week from two treatment plants in central Pennsylvania for non-typhoidal and characterized isolates using whole-genome sequencing.

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Moss spores are present in aerobiological samples, but their low representation, lack of known allergenic properties, and difficult identification have led to their being overlooked by aerobiologists so far. The data about their presence in the atmosphere and the factors that influence them are, however, important from the biodiversity conservation point of view, since they give us information about their ability to spread to new habitats. In this pilot study, we analysed their presence in the atmosphere of Bratislava city, Slovakia (2018-2023), using Burkard volumetric sampler, and determined the most significant factors influencing its temporal distribution.

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  • The study focused on the persistence and antimicrobial resistance of the foodborne pathogen Listeria monocytogenes in three tree fruit packing facilities over two packing seasons (2020-2022).
  • Results showed that over half of the isolates had resistance to peroxyacetic acid (PAA) at concentrations similar to those used for sanitizing, while the majority were sensitive to a biofilm-removing agent at much lower concentrations.
  • Genomic analysis revealed that all isolates carried multiple antimicrobial resistance and virulence genes and demonstrated long-term persistence of certain genotypes at a specific facility over five years.
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Indented growth rings were found long ago to be experimentally induced in Miller by thin parallel axial scratching of the bark up to the vascular cambium with a sharp blade. Here, we show that when the bark and vascular cambium of . are wounded by wide and long parallel axial wounds ("windows") rather than by thin scratches, the induced indented growth rings become dramatically more indented.

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Campylobacteriosis outbreaks have previously been linked to dairy foods. While the genetic diversity of Campylobacter is well understood in high-income countries, it is largely unknown in low-income countries, such as Ethiopia. This study therefore aimed to conduct the first genomic characterization of Campylobacter isolates from the Ethiopian dairy supply chain to aid in future epidemiological studies.

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We report the isolation and draft genome sequence of a novel member of the bovine nasal microbiota. The genome, which is estimated to be 90.5% complete, is composed of one contig comprising 2,363,349 bp with a GC content of 36.

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Nowadays, bacteria resistance to many antibiotics is a huge problem, especially in clinics and other parts of the healthcare system. This critical health issue requires a dynamic approach to produce new types of antibacterial coatings to combat various pathogen microbes. In this research, we prepared a new type of carbon quantum dots based on phloroglucinol using the bottom-up method.

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  • Hypertriglyceridemia (HTG) is caused by genetic factors, primarily involving variations in the lipoprotein lipase (LPL) gene, leading to symptoms like pancreatitis and xanthomas in severe cases.
  • The study examined four patients with LPL deficiency, focusing on their triglyceride levels and clinical features through genetic testing and literature review.
  • Results indicated that while homozygous patients faced more severe health issues, heterozygous patients showed improvement through dietary changes and medication, highlighting the importance of management strategies.
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